Some of
“Trust”: WaMu Asset Backed Certificates WaMu Series 2007-HE4 Trust, a Delaware
statutory trust, created pursuant to the Original Trust Agreement
39 II-38-A through II-59-A 2 multiplied by Swap LIBOR minus the REMIC FM Rate, subject to a
maximum rate of Uncertificated REMIC 1 Pass-Through Rate
II-1-A through II-37-A Uncertificated REMIC 1 Pass-Through Rate
40 II-39-A through II-59-A 2 multiplied by Swap LIBOR minus the REMIC FM Rate, subject to a
maximum rate of Uncertificated REMIC 1 Pass-Through Rate
II-1-A through II-38-A Uncertificated REMIC 1 Pass-Through Rate
41 II-40-A through II-59-A 2 multiplied by Swap LIBOR minus the REMIC FM Rate, subject to a
maximum rate of Uncertificated REMIC 1 Pass-Through Rate
II-1-A through II-39-A Uncertificated REMIC 1 Pass-Through Rate
42 II-41-A through II-59-A 2 multiplied by Swap LIBOR minus the REMIC FM Rate, subject to a
maximum rate of Uncertificated REMIC 1 Pass-Through Rate
II-1-A through II-40-A Uncertificated REMIC 1 Pass-Through Rate
43 II-42-A through II-59-A 2 multiplied by Swap LIBOR minus the REMIC FM Rate, subject to a
maximum rate of Uncertificated REMIC 1 Pass-Through Rate
II-1-A through II-41-A Uncertificated REMIC 1 Pass-Through Rate
44 II-43-A through II-59-A 2 multiplied by Swap LIBOR minus the REMIC FM Rate, subject to a
maximum rate of Uncertificated REMIC 1 Pass-Through Rate
II-1-A through II-42-A Uncertificated REMIC 1 Pass-Through Rate
45 II-44-A through II-59-A 2 multiplied by Swap LIBOR minus the REMIC FM Rate, subject to a
maximum rate of Uncertificated REMIC 1 Pass-Through Rate
II-1-A through II-43-A Uncertificated REMIC 1 Pass-Through Rate
46 II-45-A through II-59-A 2 multiplied by Swap LIBOR minus the REMIC FM Rate, subject to a
maximum rate of Uncertificated REMIC 1 Pass-Through Rate
II-1-A through II-44-A Uncertificated REMIC 1 Pass-Through Rate
47 II-46-A through II-59-A 2 multiplied by Swap LIBOR minus the REMIC FM Rate, subject to a
maximum rate of Uncertificated REMIC 1 Pass-Through Rate
II-1-A through II-45-A Uncertificated REMIC 1 Pass-Through Rate
48 II-47-A and II-59-A 2 multiplied by Swap LIBOR minus the REMIC FM Rate, subject to a
maximum rate of Uncertificated REMIC 1 Pass-Through Rate
II-1-A through II-46-A Uncertificated REMIC 1 Pass-Through Rate
49 II-48-A through II-59-A 2 multiplied by Swap LIBOR minus the REMIC FM Rate, subject to a
maximum rate of Uncertificated REMIC 1 Pass-Through Rate
II-1-A through II-47-A Uncertificated REMIC 1 Pass-Through Rate
50 II-49-A through II-59-A 2 multiplied by Swap LIBOR minus the REMIC FM Rate, subject to a
maximum rate of Uncertificated REMIC 1 Pass-Through Rate
II-1-A through II-48-A Uncertificated REMIC 1 Pass-Through Rate
51 II-50-A and II-59-A 2 multiplied by Swap LIBOR minus the REMIC FM Rate, subject to a
maximum rate of Uncertificated REMIC 1 Pass-Through Rate
II-1-A through II-49-A Uncertificated REMIC 1 Pass-Through Rate
52 II-51-A through II-59-A 2 multiplied by Swap LIBOR minus the REMIC FM Rate, subject to a
maximum rate of Uncertificated REMIC 1 Pass-Through Rate
II-1-A through II-50-A Uncertificated REMIC 1 Pass-Through Rate
53 II-52-A through II-59-A 2 multiplied by Swap LIBOR minus the REMIC FM Rate, subject to a
maximum rate of Uncertificated REMIC 1 Pass-Through Rate
II-1-A through II-51-A Uncertificated REMIC 1 Pass-Through Rate
54 II-53-A through II-59-A 2 multiplied by Swap LIBO
